<template>
  <div class="app-container">
    <el-form label-width="120px">
      <el-form-item label="信息描述">
        <el-tag type="info">excel模版</el-tag>
        <el-tag>
          <i class="el-icon-download" />
          <a
            :href="OSS_PATH">点击下载模版</a
          >
        </el-tag>
      </el-form-item>

      <el-form-item label="选择Excel">
        <el-upload
          ref="upload"
          :auto-upload="false"
          :on-success="fileUploadSuccess"
          :on-error="fileUploadError"
          :disabled="importBtnDisabled"
          :limit="1"
          :action="BASE_API + '/eduservice/subject/addSubject'"
          name="file"
          accept="application/vnd.ms-excel"
        >
          <el-button slot="trigger" size="small" type="primary"
            >选取文件</el-button
          >
          <el-button
            :loading="loading"
            style="margin-left: 10px"
            size="small"
            type="success"
            @click="submitUpload"
            >上传到服务器</el-button
          >
        </el-upload>
      </el-form-item>
    </el-form>
  </div>
</template>



<script>
export default {
  data() {
    return {
      BASE_API: process.env.BASE_API, // 接口API地址
      OSS_PATH: "https://edu-young160.oss-cn-beijing.aliyuncs.com/write.xlsx", // 阿里云OSS地址
      importBtnDisabled: false, // 按钮是否禁用,
      loading: false,
    };
  },
  created() {

  },
  methods: {
      //点击上传到接口中
      submitUpload() {
        this.importBtnDisabled = true
        this.loading = true
        //js:document.getElementById("upload").submit()
        this.$refs.upload.submit()
      },
      //上传成功
      fileUploadSuccess() {
          //提示信息
          this.loading = false
          this.$message({
              type: 'success',
              message: '添加课程分类成功'
          })
          //跳转到课程分类的列表中
          this.$router.push({path: '/subject/list'})
      },
      //上传失败
      fileUploadError() {
          //提示信息
          this.loading = false
          this.$message({
              type: 'error',
              message: '添加课程分类失败'
          })
          //跳转到课程分类的列表中
      }
  }
};
</script>